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7 h 25 m, 2 jan 1919 ano - Francis Aston pioneers the mass spectrometer and uses it to discover many isotopes
Adicionado na linha do tempo:
20th Century
By
Rafelle Marie Timog Allego
10 fev 2018
0
0
654
Data:
7 h 25 m, 2 jan 1919 ano
Agora
~ 105 years ago
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